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Finding the Fourth Proportional to 64,817.65, 89,489.64 and 52,909.30

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Solution

The fourth proportional to 64,817.65, 89,489.64 and 52,909.30 is: 73,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,817.65 : 89,489.64 = 52,909.30 : x
  2. Step 2: Convert to fraction form
    64,817.65/89,489.64 = 52,909.30/x
  3. Step 3: Cross multiply
    64,817.65x = 89,489.64 × 52,909.30
  4. Step 4: Simplify right side
    64,817.65x = 4,734,834,209.65
  5. Step 5: Solve for x
    x = 4,734,834,209.65/64,817.65
  6. Step 6: Final answer
    x = 73,048.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.